At one level, this means things such as synchronous and asynchronous communications, routing, transformation, high speed distribution of data, and gateways and protocol converters.
在一个层次上，这意味着数据的同步和异步通信、路由、转换和高速分布、以及网关和协议转换器等等。
Now let's see at a high level how a network packet is structured. Depending on the protocol being used for the communication, you could be dealing with one of the following IP packets.
现在我们从更高的层次看看网络包的结构是怎样的。
The CAN is a serial communications protocol which efficiently supports distributed real time control with a very high level of security.
CAN是具有很高的安全水平、能有效支持分布式实时控制的一种串行通信协议。
Since the UDP protocol is non-connection, a transfer control should be taken on the high level to avoid high packet loss when the network is bad.
而UDP协议是无连接的，因此要在上层对用户数据报协议包的发送速率进行控制，来避免在网络情况不良的时候，产生较大的丢包率。
Since the UDP protocol is non-connection, a transfer control should be taken on the high level to avoid high packet loss when the network is bad.
而UDP协议是无连接的，因此要在上层对用户数据报协议包的发送速率进行控制，来避免在网络情况不良的时候，产生较大的丢包率。
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